|Publication number||US7699243 B2|
|Application number||US 11/872,317|
|Publication date||Apr 20, 2010|
|Filing date||Oct 15, 2007|
|Priority date||Oct 27, 2006|
|Also published as||CN101185923A, CN101185923B, DE202006016674U1, EP1916038A2, EP1916038A3, EP1916038B1, EP2289633A2, EP2289633A3, US20080135650|
|Publication number||11872317, 872317, US 7699243 B2, US 7699243B2, US-B2-7699243, US7699243 B2, US7699243B2|
|Original Assignee||Nordson Corporation|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (18), Non-Patent Citations (2), Referenced by (3), Classifications (16), Legal Events (3)|
|External Links: USPTO, USPTO Assignment, Espacenet|
This application claims the priority benefit of German Utility Model No. 202006016674.2, the disclosure of which is hereby incorporated by reference herein.
The present invention relates to an applicator device for sheet application of liquid material.
Applicator devices, also known as application heads, are known for sheet application of liquid material, in particular hot melt adhesive. Such application heads have a main body, a nozzle assembly for dispensing the liquid material, and a valve system for controlling the dispensing of material. The nozzle assembly and the valve system are incorporated into the main body. The hot melt adhesive is fed to the main body under pressure and is directed from there to the valve system. Directing the adhesive from the main body to the valve system is controlled by the valve system, which also controls the dispensing of the hot melt adhesive from the nozzle assembly for application onto an application surface.
The nozzle assembly has at least one slit for this purpose, to ensure film-type or strip-type dispensing of the liquid material. The slit can have interruptions for this purpose, in order to output a plurality of strips side-by-side, possibly even at differing intervals from each other. In some cases the valve system has a plurality of slits that are controllable independently of each other.
The hot melt adhesive is fed to the main body at a high temperature, which may be, for example, up to 200° C. To avoid too great a temperature drop, heating devices are provided in the main body.
The valve system is attached to the main body by means of screw fittings. To achieve a definable orientation of the valve system with respect to the main body, and thus to the application surface during operation, drilled holes with corresponding pins are provided in the main body and the valve system.
A disadvantage here is that changing the nature and arrangement of the application of the hot melt adhesive, i.e., changing the application pattern—known as a format change—necessitates completely loosening all of the screws attaching the valve system to the main body. This makes a format change costly and also difficult, since both the loosened screws and the nozzle orifice can fall off when the last screw is loosened. Added to this is the fact that a detailed constructional adaptation of the valve system to the main body is necessary.
Another disadvantage with known applicator devices is that different material thicknesses of the hot melt adhesive can occur, depending on the position of the applied hot melt adhesive along the nozzle slit. Such a variation of the material thickness can be caused by an uneven temperature distribution.
The object of the present invention is thus to reduce the above-named problems as much as possible, or to eliminate them.
Using a clamping device to attach the nozzle assembly to the main body avoids fastening elements on the nozzle assembly, in particular through holes that are matched to corresponding holes with threading in the main body. This makes it possible to increase the compatibility between nozzle assemblies and basic bodies. In addition, a simplification of the design of the nozzle assembly is achievable, since when arranging the cavities and, in particular, channels to carry the hot melt adhesive within the nozzle assembly, it is no longer necessary to pay attention to the named attachment holes. The former encroachment of attachment holes on the inner geometries of the nozzle assembly is thus no longer present.
All that is needed to install or uninstall a nozzle assembly and, in particular, to exchange a nozzle assembly, is to release the clamping in order to loosen the attachment far enough so that, for example, the nozzle assembly can be removed by pulling it out transversely to a clamping direction. The effort of removing a large number of screws no longer needs to be made. This also counteracts the loss of screws. That also prevents screws from falling into other parts of the system when the nozzle assembly is being exchanged.
In an advantageous manner, the clamping device has at least one clamping section affixed to the main body and/or at least one clamping means or element that is attachable to the main body. For attaching, in an advantageous design the nozzle assembly is held between a fixed clamping section and at least one clamping means or element that is attachable to the main body. The fixed clamping section here is firmly attached to the main body, in particular it is made in a single piece with the latter. This clamping section together with the main body thus forms a stable design and offers a flank against which the nozzle assembly is placed for attaching. From the other side of the nozzle assembly one or more clamping elements are provided, which are attached to the main body for example by means of screws and thereby hold the nozzle assembly together with the clamping section. In such an attached state the nozzle assembly has one side against the clamping section and another side against the clamping elements. With a third surface the nozzle assembly is in contact with another surface of the main body, namely, in the area of dispensing orifices for hot melt adhesive. Corresponding with these orifices in the main body, there are orifices in the nozzle assembly to receive the hot melt adhesive, which correspond to the forenamed dispensing orifices in the main body. In principle, however, the dispensing orifices can also be situated in the area of the clamping section.
In an advantageous embodiment, the clamping device has a plurality of clamping elements spaced apart from each other. This sort of spaced arrangement is often adequate to achieve uniform attachment. The use of a plurality of spaced clamping elements, in particular identical ones, has the advantage that the same clamping elements can be used for applicator devices of different sizes, with a number of clamping elements that corresponds to the size of the applicator device being used for the attachment.
The preferred embodiment is an applicator device according to the invention, characterized in that the main body has a contact surface for placing the nozzle assembly and the clamping section has a clamping section surface and/or the clamping element has a clamping element surface, and the contact surface to the clamping section surface, and/or in the attached state to the clamping element surface, spans an angle of less than 90°. This causes an undercut area to be formed between the contact surface for placing the nozzle assembly and the clamping section surface, into which the nozzle assembly is inserted for attaching. When clamping elements are used, in the attached state such an undercut area between the clamping means and the contact surface also results. When the nozzle assembly is attached by means of the clamping device, in one case the attachment comes about between the clamping section and at least one clamping element. The clamping section and the clamping element operate here like two gripping jaws which grip the nozzle assembly between them. The oblique position of the clamping section surface and the clamping element surface results in an additional force which acts on the nozzle assembly in the direction of the contact surface of the main body. In an advantageous design, there is at least one orifice present in the contact surface of the main body to dispense liquid material to the nozzle assembly. Pressing the nozzle assembly in the direction of the contact surface thus also promotes in addition a connection between at least one discharge opening in the main body and a corresponding input opening in the nozzle assembly.
Preferably, the clamping device has at least one tensioning means or element to clamp the nozzle assembly in position. Such a tensioning means or element is provided in order to exert force on the nozzle assembly, so that the latter is held firmly in the clamping device. The tensioning element thus increases a clamping force of the clamping device on the nozzle assembly, or in a preferred design brings about largely or exclusively only the clamping or tensioning force on the nozzle assembly needed to attach the nozzle assembly. Advantageously, the tensioning element has at least one clamping screw, which is advantageously formed in at least one clamping element. Such a tensioning element can also be formed in a different way in the clamping element, for example by a lever arrangement.
In a preferred variant, the clamping element each have a threaded hole in which a threaded pin is situated. In the assembled state the threaded holes are directed toward the nozzle assembly, and in particular they run perpendicular to the surface of the clamping element; when the threaded pin is screwed in the appropriate direction the threaded pin presses against the nozzle assembly, thereby resulting in a firm bracing between nozzle assembly and clamping device.
To release the clamping device in order to be able to perform an exchange of the nozzle assembly, each threaded pin is released from the nozzle assembly by turning it in the appropriate direction. The threaded pin does not have to be completely unscrewed from the threaded hole for this purpose. Instead, it is sufficient if the respective threaded pin no longer extends beyond the surface of the respective clamping element. The nozzle assembly can then be pulled along the surfaces of the clamping element out of the clamping device, and at the same time along the contact surface and a clamping section surface, and thereby be removed from the applicator device. After concrete dimensioning of the clamping device and the nozzle assembly it can sometimes be necessary to loosen the clamping element further, but without removing them completely from the main body. The clamping device is thus released in particular by the tensioning element, and the nozzle assembly can be pulled out of the clamping device transversely to a tensioning direction and another nozzle assembly can be inserted into the clamping device. No part of the attaching device that is designed according to the invention as a clamping device, in particular no screws, need to be removed completely. In one embodiment the clamping element can be removed completely, however, in order to be able to remove a nozzle in other directions when necessary, for example downward, or to perform servicing.
To ensure that the nozzle assembly is attached at its intended place in the clamping device, advantageously at least one positioning means or element is provided to position the nozzle assembly. Such a positioning means or element can be realized for example by two corresponding geometries, where the nozzle assembly has one geometric shape and the main body and/or the clamping device has a shape that corresponds thereto. In one embodiment, at least one positioning element has a stop against which the nozzle assembly is pushed. Such a stop can be attached to the main body and/or the nozzle assembly for example as a screw with a screw head and possibly a washer.
In an advantageous design, the positioning element has at least one recess in the nozzle assembly or the clamping device and at least one corresponding element to engage the recess. The recess and the element engaging it are designed so that a shift of the nozzle assembly transversely to a tensioning direction, i.e. a shift along the contact surface, clamping section surface and/or clamping element surface is prevented.
Advantageously, the corresponding element is designed as a movable element, in particular, as a threaded pin in the clamping element. Because the corresponding element is movable, it can be moved away to pull a nozzle assembly out or insert it into the clamping device, so that this removal or insertion is not hindered by the corresponding element. The nozzle assembly is then pushed into its position in the clamping device, and the corresponding movable element is moved into the recess. In an advantageous design a threaded pin is screwed into the recess. Advantageously, the threaded pin is provided with a point and the recess is designed with sloping flanks in the nature of a chamfer. When the threaded pin is screwed point-first into the indentation-like recess, that can not only fix the position of the nozzle assembly, but also the interaction between the point of the threaded pin and at least one sloping flank of the recess can bring about an additional change, namely correction of the position of the nozzle assembly. Such an effect can be achieved for example by a conical design of the recess.
It is advantageous when a positioning element corresponds at least in part with a tensioning element. In one embodiment, a threaded pin with a point is used initially for positioning here after a nozzle assembly is inserted into the clamping device. To this end, the threaded pin is rotated and at the same time moved into a corresponding recess, in order to thereby get the nozzle assembly into its final position and secure it there against shifting. By screwing this threaded pin even further in the direction of the nozzle assembly, this threaded pin also achieves a tension that acts on the nozzle assembly. This threaded pin thus functions on the one hand as a tool for positioning and on the other hand as a tensioning means element. Other tensioning element can be provided, which however do not have to be intended as positioning element, since a nozzle assembly inserted into the clamping device can only move in one direction, and thus in principle only one positioning device is necessary.
In another preferred embodiment the clamping device has two opposing fixed clamping sections, in order to thereby fasten a nozzle assembly between these two clamping sections. Both clamping sections are preferably formed here in a single piece with the main body. Preferably, the clamping device here has a U-shape in a cross section transverse to the direction of insertion of the nozzle assembly, and thus transverse to the contact surface and/or one of the clamping section surfaces, or encloses a dovetail-shaped space. At the same time, preferably tensioning elements for secured attachment of the nozzle assembly are provided within this form in one leg of such a clamping device, and thus in one clamping section. In particular, such clamping elements are executed as threaded holes with threaded pins transverse to one leg.
By providing an elastic clamping element, which is preferably in the form of a sheet-metal spring, a tensioning force that acts on the nozzle assembly to attach it is predeterminable through the geometry of the clamping device matched to the nozzle assembly and the concrete design, including the material used for the elastic clamping element. Thus to attach a nozzle assembly the latter is inserted into the clamping device and the elastic clamping element is attached to the main body—in particular, it is screwed on firmly. This causes the elastic clamping element to come under tension, which acts on the nozzle assembly to attach it.
In a preferred embodiment, a holding element is attached to the clamping section. Such a holding element extends beyond the clamping section surface in the direction of an attached nozzle assembly. This enables an undercut area to be realized for the clamping section including the holding element, without the clamping section with its clamping section surface having to be incorporated into the main body as an undercut area. Such an undercut area produced by the holding element promotes holding of the nozzle assembly in the manner already described above.
By preference, the nozzle assembly has at least one indentation, in particular a groove to engage an edge of the clamping section, the clamping element and/or the holding element. This enables the attachment of the nozzle assembly to be improved, since the engagement of the clamping device in a groove of the nozzle assembly improves the hold of the nozzle assembly. At the same time, when the clamping device is released the nozzle assembly can be slid out or slid back in, as with other embodiments.
It is further proposed according to the invention to provide an applicator device with a nozzle assembly that has a nozzle for dispensing the liquid material and a nozzle receptacle to hold the nozzle. It is possible here to create a nozzle that does not require any through holes for attachment. Hence, a nozzle can be exchanged in a simple manner, and any channels for hot melt adhesive are independent of the attachment. It is advantageous if the nozzle receptacle is approximately U-shaped in design in a front view, and if the nozzle assumes a U-shape in such an interior space. Advantageously, clamping elements are provided here, in particular clamping screws to clamp the nozzle in place. Thus, for example, by arranging a plurality of clamping screws in a leg of a U-shaped nozzle receptacle, they can be tightened against the nozzle to attach it solidly. This enables the nozzle to be held firmly without having to have attaching holes itself.
According to another preferred embodiment, a spacing element is provided between the nozzle and nozzle receptacle, in particular a spacer plate, whereby a space between the nozzle and nozzle receptacle at a contact surface is ensured, in order to thereby form a dispensing slit and thus a slotted application nozzle. At least one fixing element is provided to fix the spacing element in the nozzle assembly. This creates a firm hold for the spacing element without need of tightly screwing down the latter directly, if the fixing elements are designed, for example, as locating pins.
Through the use of heating devices, the main body as well as the nozzle assembly, control parts and other adhesive-carrying elements are heated, thereby counteracting the cooling of hot melt adhesive in the main body. It has been recognized according to the invention that hot melt adhesive sometimes exhibits great deviations in application thickness in the edge zones of the slit of the slotted application nozzle, i.e., toward the end faces of the applicator device, in comparison to application areas in the middle zone of the slotted application nozzle. At the same time, it has been recognized that the hot melt adhesive cools down too much in these areas and thereby causes the variations. Instead of fitting additional heating elements or heating zones into this area, it is proposed that the heating capacity of some heating elements be increased, in order to thereby achieve insofar as possible a uniform and stable temperature profile in the main body and/or system. Such a stabilizing thermal profile at the same time stabilizes the temperature distribution of the hot melt adhesive in the slotted application nozzle, and counteracts variations in the application thickness.
By preference, heating elements here in the area of the end faces of the applicator device are equipped with higher heating capacity. The heating capacity of a heating element in the end zone is about 20 to 200% greater than that of other heating elements in the same applicator device, preferably 50 to 120%, even more preferred 60 to 100% greater. The heating elements here in an advantageous embodiment are already adjusted to a higher heating capacity by their dimensioning. This enables the actuation of the heating elements to remain the same in terms of the cost and effort of control, and all heating elements can be actuated alike simultaneously. An increase in the heating capacity then results solely from the dimensioning of the particular heating element. An increase in physical size is normally not required here, but may be preferred to avoid confusion.
By preference, the applicator device is equipped with at least one insulation board to insulate the heating device and/or the main body thermally. This not only addresses the loss of thermal energy, but more importantly it ensures an improvement in the uniformity of a thermal profile. Preferably, at least one insulating board is situated at each end of the applicator device. The emission of thermal energy to the environment from the applicator device, and thus a temperature drop in the applicator device, is lessened by reducing the emission of thermal energy at the ends. The total emission of thermal energy in the area of the ends, i.e. in the marginal zone of the applicator device, is thus brought more into line with central zones that are distant from the ends. This promotes stabilization and the achievement of a maximally uniform temperature profile. It is possible in this way to improve temperature distribution without specifically selecting individual zones of the applicator device independently of other zones. Accordingly, it also remains sufficient to use a single temperature sensor in small applicator devices, or for each heating zone where there are multiple heating elements in large applicator devices.
The present invention will be explained below in greater detail with reference to the figures, on the basis of some exemplary embodiments. The figures show the following:
Applicator device 1 according to
From an operator side, which is depicted on the right in
An input 26 is provided to supply the applicator device with hot melt adhesive. To this end, a supply line is connected to the supply connection 28 of input 26 to supply hot melt adhesive. The hot melt adhesive passes through input 26 into filter 20 and there through a filter body, and is then delivered to nozzle assembly 4 through dispensing orifices.
Applicator device 1 of
Main body 2 has yet another opening for supplying hot melt adhesives, but it is closed with a dummy plug 38 and has no other significance in the depicted configuration of the applicator device.
A main electrical connection 40 is provided for the general supply of electricity to applicator device 1. Via this main electrical connection 40 it is possible to transmit electrical signals, switch signals and measurement signals, as well as electrical energy. For example, the switch signals for control unit 6 can also be transmitted via the main electrical connection 40; these are then forwarded from the main body at the electrical connection 32 of control unit 6. This necessitates the provision of electrical connections, which however are not illustrated in
Electrical energy for heating the applicator device 1 in main body 2 can also be supplied through the main electrical connection 40.
Nozzle assembly 4 is made up essentially of a nozzle 44 and a nozzle adapter 42 by means of screw fitting 46. Openings 43 are provided for locating pins. Situated between nozzle 44 and a nozzle adapter 42 is a flat intermediate element, known as a spacer plate 48. Nozzle assembly 4 also has a dispensing slit 50. According to the depiction in
To attach the nozzle assembly 4, applicator device 1 has a fixed clamping section 56, which is formed in a single piece with the main body 2, as well as two clamping means or elements 58 that are attachable to the main body. The clamping section 56 and the clamping means 58 are designed to clamp nozzle assembly 4 between them. With such clamping, nozzle assembly 4 bears against clamping section surface 60 with its nozzle 44, and nozzle adapter 42 bears against two clamping means surfaces 62. In addition, nozzle assembly 4 then bears upward with a connecting surface 64 against a contact surface 66 of main body 2. Clamping section surface 60 is at an angle of about 75° to contact surface 66. In the assembled state the clamping means surfaces 62 of clamping means 58 are likewise at an angle of about 75° to contact surface 66.
To attach the nozzle assembly, the clamping means 58 in turn are attached to the main body 2, in which the attaching screws 68 are screwed into the corresponding threaded holes 70. For a solid seating of the clamping means 58 on the main body 2, the latter has corresponding clamping means seats 72, which are incorporated into the main body 2. To position nozzle assembly 4 in a direction of motion transverse to dispensing slit 50, and in part also to fix its position, a recess 74 shaped for example like a notch is formed in nozzle adapter 42. For positioning, a threaded pin 76 with a point that corresponds approximately to the recess 74 is provided, which is screwed into the threaded hole 78 in clamping means 58 for this purpose and in so doing is moved into the recess 74. This simultaneously causes a tensioning, in that the threaded pin 76 exerts a force on nozzle assembly 4. There is another tension pin 80 provided as a tensioning means or element in one of the clamping means 58, which is likewise guided in a threaded hole, in order to be screwed in the direction of nozzle assembly 4 in the area of nozzle adapter 42. However, tension pin 80 has an essentially flat surface directed toward nozzle assembly 4, and thus in contrast to threaded pin 76 does not have a dual function. The threaded pin is thus intended for positioning nozzle assembly 4 as part of a positioning means. Threaded pin 76 and tension pin 80 are both designed as parts of the tensioning means for clamping the nozzle assembly in position.
In addition, an electric dummy plug can also be seen from
Insulating boards 12 and 14 are designed as flat elements.
Applicator device 1 is shown at a smaller scale in
As threaded pin 76 is tightened, nozzle assembly 4, which initially hangs in clamping device 1, will slide up on the clamping section surface 60, in order to then be in contact with the contact surface 66. Clamping section surface 60 is normally greased for this purpose.
It can be seen from
The top view according to
Nozzle assembly 4 including a clamping means 58 with a threaded pin 76 is visible in greater detail from
Nozzle 44 has a second screw fitting surface 45. Screw fitting surface 47 and second screw fitting surface 45 are situated approximately plane-parallel to each other, in order to thereby shape the connection of nozzle 44 to nozzle receptacle 42 simply.
The applicator device according to the second embodiment according to
Nozzle assembly 204 is attached to main body 202 here by means of five clamping means or elements 258. The middle clamping means 258, shown unmounted, is equipped with a threaded pin 276 with a point 277. For positioning, threaded pin 276 in clamping means 258 is pushed into the recess 274 for positioning, by means of screws. Since threaded pin 276 is centered in the middle clamping means 258, and recess 274 is also centered in nozzle assembly 204, the positioning can also be referred to here as centering. The clamping means 258 are identical in design to the clamping means 58 according to the first embodiment according to
A plurality of heating cartridges are used to heat applicator device 201. An outer heating cartridge 284 is shown in the withdrawn state in the area of main electrical connection 240.
The positions of all heating modules, in this case heating cartridges, can be seen from
Applicator device 301 according to the third embodiment and according to
Insulating board 312 is shaped, in particular in its outline, to fit end face 313.
Applicator device 301 according to
From the side view and top view of applicator device 301 according to
Like the second embodiment, applicator device 301 of the third embodiment also has five fastening elements 358, which are however at different intervals from each other. In applicator device 301 there are two main electrical connections 340 present.
The main body 402 according to the fourth embodiment and according to
Sheet metal spring 458 depicted in
Nozzle assembly 504 according to a fifth embodiment and according to
To fasten it, four clamping screws 580 are situated in one side 558 of nozzle receptacle 542. To clamp nozzle 544 tightly in nozzle receptacle 542, the tensioning screws 580 are screwed against nozzle 544. That forces nozzle 544 against nozzle receptacle 542, with a spacer plate 548 being clamped tightly between nozzle and nozzle receptacle 544, 542.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US5292068 *||Aug 17, 1992||Mar 8, 1994||Nordson Corporation||One-piece, zero cavity nozzle for swirl spray of adhesive|
|US5524828||Mar 8, 1995||Jun 11, 1996||Nordson Corporation||Apparatus for applying discrete foam coatings|
|US5636790 *||Jun 7, 1995||Jun 10, 1997||Nordson Corporation||Fluid applicator|
|US5740963||Jan 7, 1997||Apr 21, 1998||Nordson Corporation||Self-sealing slot nozzle die|
|US6210141 *||Feb 10, 1998||Apr 3, 2001||Nordson Corporation||Modular die with quick change die tip or nozzle|
|US6540831 *||Apr 16, 1999||Apr 1, 2003||Nordson Corporation||Method and apparatus for applying a controlled pattern of fibrous material to a moving substrate|
|US6676038 *||Oct 31, 2001||Jan 13, 2004||Nordson Corporation||Universal dispensing system for air assisted extrusion of liquid filaments|
|US7399361 *||Apr 26, 2005||Jul 15, 2008||Nordson Corporation||Apparatus for applying fluid to a substrate|
|US7559487 *||Jul 14, 2009||Nordson Corporation||Universal dispensing system for air assisted extrusion of liquid filaments|
|US20020134859||Oct 31, 2001||Sep 26, 2002||Nordson Corporation||Universal dispensing system for air assisted extrusion of liquid filaments|
|DE6932202U1||Title not available|
|DE29918424U1||Oct 19, 1999||Jan 13, 2000||Nordson Corp Westlake||Vorrichtung zum Auftragen von Fluid auf ein Substrat|
|DE69514404T2||Apr 22, 1995||Jul 6, 2000||Nordson Corp||Wärmesperre für Abgabevorrichtung von heissem Klebstoff|
|DE69530243T2||Mar 8, 1995||Feb 19, 2004||Nordson Corp., Westlake||Flüssigkeitsapplikator|
|DE202004001480U1||Jan 30, 2004||Apr 1, 2004||Nordson Corporation, Westlake||Applicator head for coating moving substrate has a clamp fitting via an adaptor plate fitted to the spray support structure|
|EP0936000B1||Feb 6, 1999||Oct 10, 2007||Nordson Corporation||Modular die with quick change die tip or nozzle|
|EP1344574A2||Feb 27, 2003||Sep 17, 2003||Nordson Corporation||Method of applying a continuous adhesive filament to an elastic strand with discrete bond points and articles manufactured by the method|
|EP1579927A2||Mar 23, 2005||Sep 28, 2005||Fuji Photo Film Co., Ltd.||Coating apparatus and coating method|
|1||European Patent Office, Search Report in Application No. 07119195, Jan. 16, 2008.|
|2||German Patent Office, Search Report in Application No. 202006016674.4, Oct. 23, 2007.|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US8893930||Oct 25, 2012||Nov 25, 2014||Graco Minnesota Inc.||Internal valve tip filter|
|US9156053||Oct 25, 2012||Oct 13, 2015||Graco Minnesota Inc.||Melter|
|US9174231||Oct 25, 2012||Nov 3, 2015||Graco Minnesota Inc.||Sprayer fluid supply with collapsible liner|
|U.S. Classification||239/135, 239/549, 239/600, 425/186, 239/390, 239/128, 239/597|
|Cooperative Classification||B05C5/0279, B05B15/065, B05C5/0258, B05C5/001, B05C5/0237|
|European Classification||B05C5/02F1, B05C5/02J1B, B05C5/00A|
|Feb 28, 2008||AS||Assignment|
Owner name: NORDSON CORPORATION, OHIO
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:STARKE, BERNWARD;REEL/FRAME:020577/0743
Effective date: 20071113
Owner name: NORDSON CORPORATION,OHIO
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:STARKE, BERNWARD;REEL/FRAME:020577/0743
Effective date: 20071113
|Jun 28, 2011||CC||Certificate of correction|
|Oct 10, 2013||FPAY||Fee payment|
Year of fee payment: 4